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Pieck, Daniela; Thölen, Claudia; Lehners, Carola; Voß, Daniela; Zielinski, Oliver: Reference measurements of surface waters during the RV MARIA S. MERIAN cruise MSM97/2 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967466 (dataset in review)

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Abstract:
Reference measurements of surface waters were collected during the RV MARIA S Merian cruise MSM97/2 (12.12.2020 - 23.12.2020, Emden, Germany - Emden Germany). Accompanying the underway measurements of the DAM transit cruise water samples were taken from the CTD and the onboard measurement containers (RSWS) for later validation of bio-optical water properties. Turbidity and fluorescent dissolved organic matter (fDOM) were measured directly onboard via handheld instruments (see methods/device) whereas suspended particular matter (SPM) and chlorophyll a (Chl a) were filtered onboard on glas fibre filters (GFF, 47mm, 0,7 µm) and frozen at -25°C and -80°C immediately after sampling. Values were determined in the lab after the cruise within 2 months, for SPM via gravimetric analysis and for Chl a according to EPA Method 445. Water samples for nitrate analysis were taken and frozen at -25°immediately after sampling for later lab analysis according to Grasshoff et al. (1999).
Keyword(s):
Bio-optics; Chl a; ICBM; nitrate; References; SPM
Related to:
Becker, Marius; Betz, Maximilian; Damaske, Daniel; Kopte, Robert; Pieck, Daniela; Schlundt, Michael; Wiemer, Gauvain (2022): DAM-Underway Acquisition and Transfer, Cruise No. MSM97/2, 12.12.2020 - 24.12.2020, Emden - Emden (Germany). MARIA S. MERIAN-Berichte, Begutachtungspanel Forschungsschiffe, MSM97/2, 31 pp, https://doi.org/10.48433/cr_msm97_2
Becker, Marius; El-Ama, André (2022): Continuous bio-optical measurements of chloropyll a and turbidity along RV MARIA S. MERIAN cruise MSM97/2. PANGAEA, https://doi.org/10.1594/PANGAEA.942197
Pieck, Daniela; Thölen, Claudia; Voß, Daniela; Zielinski, Oliver; Becker, Marius (2024): Continuous optical measurements of absorbance for the calculation of optical Nitrate along RV MARIA S. MERIAN cruise MSM97/2. PANGAEA, https://doi.org/10.1594/PANGAEA.967381
References:
Arar, E J; Collins, G B (1997): Method 445.0 In Vitro Determination of Chlorophyll a and Pheophytin ain Marine and Freshwater Algae by Fluorescence. U.S. Environmental Protection Agency, Washington, DC, 1997, https://cfpub.epa.gov/si/si_public_record_report.cfm?Lab=NERL&dirEntryId=309417 (M445_0.PDF)
Grasshoff, Klaus; Kremling, Klaus; Ehrhardt, M (1999): Methods of Seawater Analysis, Third Edition. Wiley-VCH, https://doi.org/10.1002/9783527613984.fmatter
Coverage:
Median Latitude: 60.052402 * Median Longitude: 2.658221 * South-bound Latitude: 53.814375 * West-bound Longitude: -1.892083 * North-bound Latitude: 66.744148 * East-bound Longitude: 7.784210
Date/Time Start: 2020-12-13T14:49:00 * Date/Time End: 2020-12-22T18:20:00
Minimum DEPTH, water: 6.5 m * Maximum DEPTH, water: 6.5 m
Event(s):
MSM97/2_6-1 * Latitude: 54.394860 * Longitude: 6.233750 * Date/Time: 2020-12-14T12:09:36 * Elevation: -40.7 m * Location: North Sea * Campaign: MSM97/2 (GPF 20‐2_062) * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
MSM97/2_7-1 * Latitude: 55.573590 * Longitude: 4.034650 * Date/Time: 2020-12-14T21:06:12 * Elevation: -37.0 m * Location: North Sea * Campaign: MSM97/2 (GPF 20‐2_062) * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
MSM97/2_8-1 * Latitude: 64.577690 * Longitude: -0.491460 * Date/Time: 2020-12-16T17:51:10 * Elevation: -2727.8 m * Location: Norwegian Sea * Campaign: MSM97/2 (GPF 20‐2_062) * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventThölen, Claudia
2DATE/TIMEDate/TimeThölen, ClaudiaGeocode
3LATITUDELatitudeThölen, ClaudiaGeocode
4LONGITUDELongitudeThölen, ClaudiaGeocode
5DEPTH, waterDepth watermThölen, ClaudiaGeocode – Water sampling from CTD or measurement container
6SpeedSpeedknThölen, ClaudiaFrom DShip, indicating station or transit
7Suspended particulate matterSPMmg/lThölen, ClaudiaGravimetric analysisLab analysis
8Chlorophyll aChl aµg/lThölen, ClaudiaFluorometer, Turner Designs, Trilogy 7200-002 [EPA Method 445.0]Lab analysis
9Nitrate[NO3]-µmol/lThölen, ClaudiaMethods of Seawater Analysis, Third Edition (Grasshoff et al., 1999)Lab analysis
10Turbidity (Formazin nephelometric unit)TurbidityFNUThölen, ClaudiaTurbidity sensor, Hach Lange, TSS PORTABLE LXV322.99.00001Handheld device
11Fluorescence, dissolved organic matterfDOMppb (QSE)Thölen, ClaudiaHandheld Fluorometer, Turner Designs, AquaFluorHandheld device
12SiteSiteThölen, ClaudiaSite of sampling: CTD or measurement container MC1 or MC2
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
170 data points

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